DE1205504B - Verfahren zur Gewinnung von Alkalidithionit aus seiner Loesung durch Kuehlung und Kristallisieren - Google Patents

Verfahren zur Gewinnung von Alkalidithionit aus seiner Loesung durch Kuehlung und Kristallisieren

Info

Publication number
DE1205504B
DE1205504B DEN25035A DEN0025035A DE1205504B DE 1205504 B DE1205504 B DE 1205504B DE N25035 A DEN25035 A DE N25035A DE N0025035 A DEN0025035 A DE N0025035A DE 1205504 B DE1205504 B DE 1205504B
Authority
DE
Germany
Prior art keywords
solution
cooling
dithionite
crystals
crystallization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEN25035A
Other languages
German (de)
English (en)
Inventor
Marina Adriana Van Damme Weele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo NV
Original Assignee
Koninklijke Nederlandse Zoutindustrie NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Nederlandse Zoutindustrie NV filed Critical Koninklijke Nederlandse Zoutindustrie NV
Publication of DE1205504B publication Critical patent/DE1205504B/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/64—Thiosulfates; Dithionites; Polythionates
    • C01B17/66—Dithionites or hydrosulfites (S2O42-)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0022—Evaporation of components of the mixture to be separated by reducing pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DEN25035A 1963-05-31 1964-05-29 Verfahren zur Gewinnung von Alkalidithionit aus seiner Loesung durch Kuehlung und Kristallisieren Pending DE1205504B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL293550 1963-05-31

Publications (1)

Publication Number Publication Date
DE1205504B true DE1205504B (de) 1965-11-25

Family

ID=19754752

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN25035A Pending DE1205504B (de) 1963-05-31 1964-05-29 Verfahren zur Gewinnung von Alkalidithionit aus seiner Loesung durch Kuehlung und Kristallisieren

Country Status (8)

Country Link
US (1) US3298796A (ru)
BE (1) BE645629A (ru)
CH (1) CH415572A (ru)
DE (1) DE1205504B (ru)
ES (1) ES299053A1 (ru)
FR (1) FR1396902A (ru)
GB (1) GB1010840A (ru)
NL (1) NL293550A (ru)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283303A (en) * 1980-06-05 1981-08-11 Virginia Chemicals Inc. Process for manufacture of stable sodium dithionite slurries
DE3435606A1 (de) * 1984-09-28 1986-04-30 Dehn + Söhne GmbH + Co KG, 8500 Nürnberg Mehrteiliger leitungshalter mit duebel

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3486848A (en) * 1966-08-05 1969-12-30 Cosmodyne Inc Refrigerated crystallizer system
US4159194A (en) * 1977-09-28 1979-06-26 Dart Industries Inc. Crystallization apparatus and process
US4218893A (en) * 1978-08-02 1980-08-26 Cheng Chen Yen Distillative freezing process for separating volatile mixtures and apparatuses for use therein
DE3069929D1 (en) * 1980-07-23 1985-02-21 Cheng Chen Yen Distillative freezing process for separating close boiling mixtures
US4650507A (en) * 1982-06-24 1987-03-17 Cheng Chen Yen Wet and dry distillative freezing process for separating mixtures and apparatuses for use therein
US4590058A (en) * 1985-02-21 1986-05-20 Olin Corporation Process for producing high purity solutions of alkali metal hydrosulfites
US4810483A (en) * 1987-06-01 1989-03-07 Olin Corporation Process for producing anhydrous alkali metal hydrosulfites
CA2016353A1 (en) * 1989-05-23 1990-11-23 Charles E. Winslow, Jr. Method for re-use of aqueous co-product from manufacture of sodium dithionite
US5006327A (en) * 1989-07-18 1991-04-09 Olin Corporation Alkali metal hydrosulfite solutions
CA3140232C (en) 2019-06-10 2022-10-04 Hydro Technologies (Canada) Inc. Process and system for producing sodium hydrosulfite crystals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1976204A (en) * 1932-01-08 1934-10-09 Standard Oil Co Process of making ice
US1988768A (en) * 1933-07-25 1935-01-22 Union Oil Co Dewaxing oils
US2938771A (en) * 1953-04-22 1960-05-31 Joseph R Ferry Method of making hyposulfites
US2886603A (en) * 1954-11-22 1959-05-12 Phillips Petroleum Co Crystallization process
US3024117A (en) * 1958-11-17 1962-03-06 Bar Rup Corp Method of freezing citrus fruit juices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283303A (en) * 1980-06-05 1981-08-11 Virginia Chemicals Inc. Process for manufacture of stable sodium dithionite slurries
DE3435606A1 (de) * 1984-09-28 1986-04-30 Dehn + Söhne GmbH + Co KG, 8500 Nürnberg Mehrteiliger leitungshalter mit duebel

Also Published As

Publication number Publication date
CH415572A (fr) 1966-06-30
FR1396902A (fr) 1965-04-23
US3298796A (en) 1967-01-17
NL293550A (ru)
GB1010840A (en) 1965-11-24
ES299053A1 (es) 1964-08-16
BE645629A (ru) 1964-07-16

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